Promote perl-sentry-sdk for GlitchTip

[marclaporte]

GlitchTip is an Open source reimplementation of the Sentry error tracking platform: https://gitlab.com/glitchtip

I suggest to add perl-sentry-sdk here: https://glitchtip.com/sdkdocs

Ref:

• https://gitlab.com/glitchtip/glitchtip-frontend/-/tree/master/src/sdk-docs
• https://gitlab.com/glitchtip/glitchtip-frontend/-/issues/277